The GNU size utility lists the section sizes and the total size for each
of the binary files objfile on its argument list. By default, one line
of output is generated for each file or each module if the file is an archive.

objfile... are the files to be examined. If none are
specified, the file "a.out" will be used
instead.

Using one of these options, you can choose whether the output from GNU
size resembles output from System V size (using -A,
or --format=sysv), or Berkeley size (using -B, or
--format=berkeley). The default is the one-line format similar to
Berkeley's. Alternatively, you can choose the GNU format output (using
-G, or --format=gnu), this is similar to Berkeley's output
format, but sizes are counted differently.

Here is an example of the Berkeley (default) format of output
from size:

The Berkeley style output counts read only data in the
"text" column, not in the
"data" column, the
"dec" and
"hex" columns both display the sum of
the "text",
"data", and
"bss" columns in decimal and
hexadecimal respectively.

The GNU format counts read only data in the
"data" column, not the
"text" column, and only displays the
sum of the "text",
"data", and
"bss" columns once, in the
"total" column. The --radix
option can be used to change the number base for all columns. Here is
the same data displayed with GNU conventions:

Using one of these options, you can control whether the size of each
section is given in decimal (-d, or --radix=10); octal
(-o, or --radix=8); or hexadecimal (-x, or
--radix=16). In --radix=number, only the three values
(8, 10, 16) are supported. The total size is always given in two radices;
decimal and hexadecimal for -d or -x output, or octal and
hexadecimal if you're using -o.

--common

Print total size of common symbols in each file. When using Berkeley or
GNU format these are included in the bss size.

-t

--totals

Show totals of all objects listed (Berkeley or GNU format mode only).

--target=bfdname

Specify that the object-code format for objfile is bfdname.
This option may not be necessary; size can automatically recognize
many formats.

-V

--version

Display the version number of size.

@file

Read command-line options from file. The options read are inserted
in place of the original @file option. If file does not
exist, or cannot be read, then the option will be treated literally, and
not removed.

Options in file are separated by whitespace. A
whitespace character may be included in an option by surrounding the
entire option in either single or double quotes. Any character
(including a backslash) may be included by prefixing the character to be
included with a backslash. The file may itself contain additional
@file options; any such options will be processed
recursively.

Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.
A copy of the license is included in the section entitled "GNU Free
Documentation License".